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Latest Chromosomes Stories

2012-02-16 14:05:20

Every cell in the body has chromosomes with so-called telomeres, which are shortened over time and also through lifestyle choices such as smoking and obesity. Researchers have long speculated that the shortening of telomeres increases the risk of heart attack and early death. Now a large-scale population study in Denmark involving nearly 20,000 people shows that there is in fact a direct link, and has also given physicians a future way to test the actual cellular health of a person. In an...

2012-02-16 11:00:00

Study shows that where broken chromosome pieces sit within the nucleus impacts where they reconnect; reveals new guiding principles for cancer genomics BOSTON, Feb. 16, 2012 /PRNewswire-USNewswire/ -- That our chromosomes can break and reshuffle pieces of themselves is nothing new; scientists have recognized this for decades, especially in cancer cells. The rules for where chromosomes are likely to break and how the broken pieces come together are only just now starting to come...

2012-02-13 13:18:38

Researchers from the University of Geneva, Switzerland, discover how enzymatic onslaughts at the ends of our chromosomes are countered Researchers from the University of Geneva (UNIGE), Switzerland, have discovered the crucial role of two proteins in developing a cell 'anti-enzyme shield'. This protection system, which operates at the level of molecular 'caps' named telomeres, prevents cells from treating chromosome ends like accidental DNA breaks and 'repairing' them. Joining chromosome...

2012-02-01 05:00:00

7,000 Different Rare Diseases and Disorders Comprise 65 Page RARE List(TM), 95% of the Medical Conditions Included on RARE List(TM) Have No FDA Approved Treatments DANA POINT, Calif., Feb. 1, 2012 /PRNewswire-USNewswire/ -- The R.A.R.E. Project (http://RAREproject.org), a leading patient advocacy organization representing the rare disease community, today issued the RARE List(TM), a stunning 65 page alphabetical listing of roughly 7,000 known rare diseases and disorders. The rare diseases...

2012-01-23 21:58:16

Chromosome aberrations happen in pairs when it comes to cancer, TAU research finds A healthy genome is characterized by 23 pairs of chromosomes, and even a small change in this structure – such as an extra copy of a single chromosome – can lead to severe physical impairment. So it's no surprise that when it comes to cancer, chromosomal structure is frequently a contributing factor, says Prof. Ron Shamir of the Blavatnik School of Computer Science at Tel Aviv University. Now...

2012-01-16 11:01:24

Telomeres, the very ends of chromosomes, become shorter as we age. When a cell divides it first duplicates its DNA and, because the DNA replication machinery fails to get all the way to the end, with each successive cell division a little bit more is missed. New research published in BioMed Central's open access journal Arthritis Research & Therapy shows that cells from osteoarthritic knees have abnormally shortened telomeres and that the percentage of cells with ultra short telomeres...

Longer Telomeres Mean Longer Lifespan
2012-01-11 05:57:06

A new study has found a possible predictor of lifespan. According to researchers at the University of Glasgow in England, the link lies in the telomeres that are located on an individual´s DNA. Telomeres are pieces of DNA that are located on the ends of chromosomal strands. They serve the same purpose as aglets on the ends of shoelaces, keeping the chromosome intact and preventing it from losing viable information over the course of a person´s lifetime. According to professor...

2011-12-12 16:15:22

Scientists show how cells accurately inherit information that is not contained in their genes All 10 trillion cells in the adult human body are genetically identical, but develop into distinct cell types, such as muscle cells, skin cells or neurons, by activating some genes while inhibiting others. Remarkably, each specialized cell maintains a memory of their individual identity by remembering which genes should be kept on or off, even when making copies of themselves. This type of memory...

2011-12-08 08:00:00

LAS VEGAS, December 8, 2011 /PRNewswire/ -- SOURCE Life Length

2011-12-01 10:30:00

CINCINNATI, Dec. 1, 2011 /PRNewswire-USNewswire/ -- Shortening end caps on chromosomes in human cervical cancer cells disrupts DNA repair signaling, increases the cells' sensitivity to radiation treatment and kills them more quickly, according to a study in Cancer Prevention Research. (Logo: http://photos.prnewswire.com/prnh/20110406/MM79025LOGO) Researchers would to like see their laboratory findings - published in the journal's Dec. 5 print edition - lead to safer, more effective...